Razor blade holder



FIG. 1 is a perspective view of a razor blade holder showing my new design with a blade cover attached; FIG. 2 is a perspective view thereof without a blade cover attached; FIG. 3 is a side elevational view thereof; FIG. 4 is a top plan view thereof; FIG. 5 is a bottom plan view thereof; FIG. 6 is a rear elevational view thereof; and, FIG. 7 is a front elevational view thereof. The broken line showing of the razor blade and blade cover is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a razor blade holder, as shown and described. 